AnandTech: The iOS 8 Review

 As another year goes by we see a new iPhone and a new version of iOS to accompany it. We also got a preview of the Apple Watch which will be going on sale next year. Our reviews of both new iPhones will be coming soon, with a look at new iOS features specific to those devices like ApplePay. But with iOS 8 rolling out today to millions of existing iOS users across the iPad, iPhone, and iPod Touch, it's worth taking a look at what Apple is bringing to the users that are already in the iOS ecosystem.

This year brings the eighth iteration of Apple's mobile operating system, and with it comes features that users and developers have desired on iOS for many years. On the surface, iOS 8 seems like a minor update compared to the massive visual overhaul that iOS 7 brought. Indeed, there's no new design language, and no enormous changes to existing apps. But under the hood, with its features for application extensibility and continuity across the devices in Apple's ecosystem, it's a massive update that will be revealed over time as developers begin to take advantage of Apple's new features and APIs. If iOS 7 was the biggest update for users since the original launch of iOS and the iPhone 7 years ago, then iOS 8 is the biggest update for developers since the launch of iOS (at the time called iPhone OS) 2.0 and the App Store.